Athletic shirt



FIG. 1 is a front perspective view of an athletic shirt showing my new design as worn;

FIG. 2 is a front view of the athletic shirt of FIG. 1, showing the design; and,

FIG. 3 is a rear view of the athletic shirt of FIG. 1, showing the design.

The broken lines in FIG. 1, showing portions of the human figure, illustrate the design in use, and form no part of the claimed design. The remaining broken lines in the collar region of the shirt represent stitching. 

CLAIM I claim the ornamental design for an athletic shirt, as shown and described. 